1199307172 has 24 divisors (see below), whose sum is σ = 2427518016. Its totient is φ = 507795168.

The previous prime is 1199307167. The next prime is 1199307217. The reversal of 1199307172 is 2717039911.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255703 + ... + 260350.

It is an arithmetic number, because the mean of its divisors is an integer number (101146584).

Almost surely, 2^1199307172 is an apocalyptic number.

It is an amenable number.

1199307172 is an abundant number, since it is smaller than the sum of its proper divisors (1228210844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1199307172 is a wasteful number, since it uses less digits than its factorization.

1199307172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516147 (or 516145 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 1199307172 is about 34631.0145967455. The cubic root of 1199307172 is about 1062.4540188083.

The spelling of 1199307172 in words is "one billion, one hundred ninety-nine million, three hundred seven thousand, one hundred seventy-two".